NOVEL · Product family
When a gas leak is detected, seconds matter. The right alarm panel makes sensor data visible, alerts personnel during alarm conditions, and manages ventilation, sirens, gas shut-off valves, or plant automation routines tailored to site-specific scenarios. The NOVEL portfolio features CETCI FCS, New Cosmos V3/VAS, ePACT, PLC-based systems, and the NV-120Mx, offering solutions that scale from single-point to multi-point architectures.
Whether for an organised industrial zone natural gas infrastructure, industrial manufacturing, chemical processing, semiconductor fabrication, or a centralised gas monitoring installation, detector–panel pairing, signal type, alarm thresholds, relay matrices, and certifications must be evaluated collectively.
Monitors signals from CETCI fixed gas detectors at a central location; coordinates zone alarms, relay logic, and ventilation strategies to support centralised safety across cold storage facilities and industrial plants.
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V3 indicator modules, selectable for various gas detector types, form panel-mount gas detection systems featuring a 3-colour LED bargraph, two-stage alarms, and the VAS alarm unit.
Providing digital visualisation and an expandable I/O architecture, the ePACT unifies multi-channel gas detector alarm handling, trend monitoring, and remote oversight onto a single platform.
Modular PLC gas alarm automation for multi-zone facilities, semiconductor fabs, chemical plants, and energy installations; featuring digital fieldbus communications, relay matrices, event logs, and centralised visualisation.
Single-point gas alarm controller for a compatible 4–20 mA gas transmitter. Detector compatibility and range are confirmed for the ordered system.
| V3 Type | Typical Application / Measurement | Compatible Detector Selection |
|---|---|---|
| Hi / Hv | High-sensitivity ppm-level monitoring of flammable gases | Matched to the indicator detector input operating principle. |
| Ci / Cv | %LEL / alarm monitoring of flammable gases | Matched to the detector flammable gas sensor type. |
| Ti / Tv | H₂, He, Ar, or process gases suitable for thermal conductivity measurement | Matched to target gas and sensor operating principle. |
| D | CO, H₂S, and other toxic gas applications | Matched to specific sensor/electrochemical operating compatibility. |
| O | Oxygen deficiency or enrichment | Paired with a suitable galvanic/oxygen detector. |
| M | 4–20 mA analogue detectors | KD-12, PD-12, KS-7, PS-7 models are listed in the manufacturer compatibility matrix. |
Technical notice: The V3 indicator module and the VAS alarm unit may be separate hardware components. CE marking must be verified against the exact model code and rack/sub-base combination; the manufacturer's general manual cites the combination of V3-M with V-SC-4B for CE compliance. This table does not constitute a configuration guarantee.
| Criterion | V3 / VAS Description |
|---|---|
| Gas concentration display | 50-segment 3-colour LED bargraph (V3) |
| Alarm configuration | Two-stage alarm; visual/audible alert with suitable VAS alarm unit |
| Power supply | 24 V DC ±10% (details may vary depending on detector combination) |
| Analogue output | 4–20 mA DC (selected configurations) |
| Relay contacts | SPDT (1c) for alarm, SPST-NO (1a) volt-free contact options for fault; exact load ratings and circuit design are taken from the technical project drawings |
| Power consumption | V3 typically 4 W; V3-M typically 5 W (excluding power draw of connected detectors) |
| Operating temperature | −10 … +40 °C; non-condensing |
| Module dimensions | 36 × 144 × 70 mm (excluding housing/projections) |
| Model | Interface / Application | Description |
|---|---|---|
| The NV-120Mx | 4–20 mA analogue input | Confirm the connected detector, indication range and power variant against the manufacturer wiring documentation. CE marking is specified for the DC variant. |
| NV-120Cv / Ci | Models suitable for flammable gases | Varies according to whether the connected sensor utilizes a catalytic or alternative operating principle. |
| NV-120Hv / Hi | High-sensitivity flammable gases | Verify ppm measuring range and detector specification requirements. |
| NV-120Dx / Sx | Toxic/specialty gas or oxygen applications | Ensure sensor and panel types are correctly matched to avoid incompatibility. |
1 detector: NV-120Mx; modular analogue/panel mount: V3/VAS; multi-channel with visualisation: ePACT; large facilities and bespoke alarm automation: PLC-based panel. CETCI FCS can be specified with compatible CETCI detectors for zonal gas/ventilation management. Selection must not be based solely on channel count.
KD-12 and PD-12 output an analogue gas concentration signal on suitable variants. When engineering installations with 4–20 mA input indicators such as the NV-120Mx and V3-M, cabling, power supplies, fault signalling currents, relay contact outputs, and gas measurement ranges must be matched. When retrofitting legacy NV-100 panels, direct pin-to-pin compatibility must not be assumed automatically.
In organised industrial zone natural gas lines, process gas bottling plants, chemical manufacturing, semiconductor fabrication, and industrial refrigeration facilities, the interaction of the panel with zone-based alarms, sounders/beacons, ventilation fans, and process safety shutdowns must be defined in advance. For critical safety systems, adherence to applicable standards and independent engineering validation are essential.
Periodic detector calibration, input loop testing, contact/relay scenario verification, fail-safe behavior under fault conditions, uninterruptible power supply, and event log auditing must be addressed holistically. NOVEL provides engineering support to determine optimal detector–panel combinations and define commissioning/servicing requirements.
It aggregates measurement and alarm signals from fixed gas detectors and commands sirens, beacons, ventilation systems, valves, or plant automation based on programmed logic. The panel itself is not a gas sensor; detector heads, control panels, and alarm response matrices are engineered as an integrated system.
The NV-120Mx is a compact solution designed for monitoring a single 4–20 mA sensor point. V3/VAS modules can be deployed across multiple distinct sensor families in panel-mount configurations. The ePACT incorporates versatile I/O modules to establish multi-channel, centralised, and expandable monitoring systems.
Yes. The connectable detector table in the manufacturer's NV-120Mx brochure specifies the KD-12 and PD-12. Other sub-models within the NV-120 series use different sensor types and connection schemes; order codes must be verified.
No. The NV-120Mx is dedicated to 4–20 mA inputs, whereas C, H, D, and O/S variants are designed for different gas types or sensor signals. The technical specification, gas type, power supply, and certification of each device must be appraised independently.
The V3-M is listed for detectors providing a suitable 4–20 mA analogue output, such as the KD-12/PD-12. The V3-Ti is designed for different detector types and measurement principles. They must not be assumed to be equivalent or to carry identical CE configurations.
In the manufacturer's brochure, standard Compact 8 and Compact 16 baseline configurations provide eight and sixteen 4–20 mA analogue inputs, respectively. The system can be expanded to accommodate additional relays, digital inputs, industrial communication interfaces, and power redundancy as required by the project.
A PLC-based architecture should be considered for large-scale facilities requiring extensive detector counts, complex alarm cause-and-effect matrices, and deep plant automation interfacing. Field communications, fail-safe architecture, alarm relays, and centralised data logging/monitoring requirements are engineered to site specifications.
ATEX or CE compliance is verified against the specific equipment model, supply voltage, and installation assembly, rather than generalised across a brand. It is common engineering practice to locate detector heads within the hazardous area while housing the control panel in a non-hazardous (safe) area; hazardous area classification must be carried out independently.
No. The mere availability of 4–20 mA, Modbus, or another interface does not guarantee complete interoperability. Detector and panel signal spans, channel addressing, fault threshold signalling, calibration procedures, and alarm cause-and-effect logic must be verified using the respective manufacturer documentation.
Notice: Model options, alarm safety functions, CE/ATEX/EMC compliance, and detector connections depend on the exact product code selected. These texts do not constitute a promise of direct system replacement or a safety certificate.
NOVEL technical support
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